Bono, E. d. (1979). Future positive: A book for the energetic eighties. London: Penguin Books.
シカゴスタイル引用形Bono, Edward de. Future Positive: A Book for the Energetic Eighties. London: Penguin Books, 1979.
MLA引用形式Bono, Edward de. Future Positive: A Book for the Energetic Eighties. London: Penguin Books, 1979.
警告: この引用は必ずしも正確ではありません.